'Nellie's Rock' : Portal Tomb

Grid RefM 965 549
GPSM 96457 54933 (6m)
Longitude8° 3' 12.43" W
Latitude53° 32' 39.53" N
ITM east480366
ITM north584435
Nearest TownRoscommon (13.1 Km)
OS Sheet40
UTM zone29U
UTM x449041
UTM y5761192
Hide map  (N.B. Google Maps & GPS readings are slightly out of sync - position is approximate)
Show inline map (by Google Maps)

Visit Notes

Sunday, 14th July 2002

I had read before that these stones (simply marked "stones" on the OS) were a source of contention as to their actual form. They have not been recognised as a tomb in the surveys, yet I can't see why not.

To me this seems to consist of two sections. Projecting out into the field is what looks like a kist. A large slab resting on a circle of upright set stones - this can not be a natural feature.

Behind these, tucked away in the trees, is a humungous stone slab resting against two set slabs and a third leaning slab, which in combination do appear to be a portal tomb. Perhaps this is one that was never finished.

The field is littered with rows and arcs of set stones which do not look like simple field boundaries.

It is an enigmatic site but I am sure it's a megalithic tomb.

Click Thumbnail to View Full Size Image


Saturday, 18th August 2007

This site has been cleared and it is now possible to see what is there. However, the site is now heavily fenced off from the old road that runs past it. We entered the field via a style in the wall some distance from the tomb and walked up the field. It was then we noticed the high chainlink fence between it and the road. We could see a notice board on the outside of the fence. After taking some photos we went around to read the sign. It was then we saw the big 'Private Keep Out' sign on the fence. At places such as these you have to ask why someone wouldn't want to share a monument that is 1m from the road?

The sign has a little map which points out some other features in teh field: a couple of ancient field walls and some concentric circles. The latter appear to be disrupted circles of stones. The board also says that the tomb structure is a collapsed portal tomb with a cist or pasage tomb at its rear. I actually think it is all one monument. In Wales there are portal tombs that have a secondary chamber at their rear as an extension.

Like this monument

Marked Sites

Random Gazetteer

A Selection of Other Portal Tombs

About Coordinates Displayed

This is an explanation of (and a bit of a disclaimer for) the coordinates I provide.

Where a GPS figure is given this is the master for all other coordinates. According to my Garmin these are quite accurate.

Where there is no GPS figure the 6 figure grid reference is master for the others. This may not be very accurate as it could have come from the OS maps and could have been read by eye. Consequently, all other cordinates are going to have inaccuracies.

The calculation of Longitude and Latitude uses an algorithm that is not 100% accurate. The long/lat figures are used as a basis for calculating the UTM & ITM coordinates. Consequently, UTM & ITM coordinates are slightly out.

UTM is a global coordinate system - Universal Transverse Mercator - that is at the core of the GPS system.

ITM is the new coordinate system - Irish Transverse Mercator - that is more accurate and more GPS friendly than the Irish Grid Reference system. This will be used on the next generation of Irish OS maps.

Valid CSS Valid HTML
Page loaded from cache: (Generation time: April 08 2020 06:56:27.)
Top of page | Feedback | About this site
© Copyright Tom FourWinds 2001-2020